Effect of external potassium concentration on caffeine contractures in frog toe muscle.
D000085:Acetates / Q000494:pharmacology; D000818:Animals; D001001:Anura; D002110:Caffeine / Q000008:administration & dosage / Q000494:pharmacology*; D002118:Calcium / Q000494:pharmacology; D004347:Drug Interactions; D066298:In Vitro Techniques; D007477:Ions; D008274:Magnesium / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects*; D009467:Neuromuscular Depolarizing Agents / Q000494:pharmacology*; D011188:Potassium / Q000008:administration & dosage / Q000494:pharmacology*; D011894:Rana pipiens; D014034:Toes / Q000187:drug effects
D000085:Acetates; D007477:Ions; D009467:Neuromuscular Depolarizing Agents; D002110:Caffeine; D008274:Magnesium; D011188:Potassium; D002118:Calcium